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Updated: Jun 2, 2026

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging (MRI)

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging (MRI)

Published on: December 16, 2021

Post-processing central k-space subtraction for high-resolution arterial peripheral MR angiography.

Egbert Gedat¹, Mojgan Mohajer, Rainer Kirsch

¹Institute of Medical Informatics, Charité University Medicine Berlin, Berlin, Germany. egbert.gedat@charite.de

Magnetic Resonance Imaging

|May 7, 2011

Summary

This study introduces a novel post-processing method for peripheral MR angiography. It achieves high-resolution arterial contrast by combining steady-state and first-pass techniques, improving imaging quality.

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Area of Science:

Medical Imaging
Magnetic Resonance Imaging
Angiography

Background:

Peripheral MR angiography demands high resolution and arterial contrast simultaneously.
Current methods face limitations due to the short arterial phase of contrast agents.
Keyhole imaging improves temporal resolution but has limitations.

Purpose of the Study:

To develop a post-processing technique for high-resolution arterial peripheral MR angiography.
To overcome the simultaneous requirement of high resolution and arterial contrast.
To enhance image quality in peripheral vascular imaging.

Main Methods:

A novel Fourier domain post-processing approach using k-space manipulation.
Subtraction of venous intensities from central high-resolution k-space data.

Related Experiment Videos

Last Updated: Jun 2, 2026

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging (MRI)

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging (MRI)

Published on: December 16, 2021

Combination of high-resolution steady-state MR angiography and standard-resolution arterial first-pass MR angiography.

Main Results:

The proposed method enables high-resolution imaging with excellent arterial contrast.
Achieved isotropic resolution of 0.65 mm with enhanced arterial visualization.
Demonstrated successful application in numerical simulations and five patient cases.

Conclusions:

The developed post-processing scheme effectively generates high-resolution arterial peripheral MR angiography.
This technique overcomes previous limitations by combining different MR angiography approaches.
Offers improved diagnostic potential for peripheral vascular diseases.